./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:40:09,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:40:09,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 16:40:09,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:40:09,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:40:09,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:40:09,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:40:09,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:40:09,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 16:40:09,764 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 16:40:09,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:40:09,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:40:09,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:40:09,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:40:09,766 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:40:09,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:40:09,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:40:09,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:40:09,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:40:09,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:40:09,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:40:09,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:40:09,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:40:09,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:40:09,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:40:09,770 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:40:09,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:40:09,770 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:40:09,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:40:09,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:40:09,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 16:40:09,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:40:09,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:40:09,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:40:09,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:40:09,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:40:09,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:40:09,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:40:09,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:40:09,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:40:09,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:40:09,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:40:09,775 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2024-10-11 16:40:09,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:40:09,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:40:09,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:40:09,978 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:40:09,978 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:40:09,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i [2024-10-11 16:40:11,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:40:11,398 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:40:11,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i [2024-10-11 16:40:11,417 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ad7d527f9/fbfa3f43ef1b4582acc2c94a3366da04/FLAG7db09ff4d [2024-10-11 16:40:11,429 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ad7d527f9/fbfa3f43ef1b4582acc2c94a3366da04 [2024-10-11 16:40:11,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:40:11,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:40:11,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:40:11,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:40:11,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:40:11,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:40:11" (1/1) ... [2024-10-11 16:40:11,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9612980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:11, skipping insertion in model container [2024-10-11 16:40:11,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:40:11" (1/1) ... [2024-10-11 16:40:11,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:40:11,794 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i[33519,33532] [2024-10-11 16:40:11,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:40:11,928 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:40:11,957 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i[33519,33532] [2024-10-11 16:40:12,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:40:12,079 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:40:12,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12 WrapperNode [2024-10-11 16:40:12,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:40:12,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:40:12,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:40:12,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:40:12,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,217 INFO L138 Inliner]: procedures = 176, calls = 424, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1864 [2024-10-11 16:40:12,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:40:12,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:40:12,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:40:12,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:40:12,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,355 INFO L175 MemorySlicer]: Split 403 memory accesses to 2 slices as follows [2, 401]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 98 writes are split as follows [0, 98]. [2024-10-11 16:40:12,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,389 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:40:12,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:40:12,426 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:40:12,426 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:40:12,427 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (1/1) ... [2024-10-11 16:40:12,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:40:12,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:12,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:40:12,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:40:12,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 16:40:12,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 16:40:12,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-11 16:40:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-11 16:40:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 16:40:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 16:40:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 16:40:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 16:40:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 16:40:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:40:12,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:40:12,664 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:40:12,666 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:40:13,862 INFO L? ?]: Removed 420 outVars from TransFormulas that were not future-live. [2024-10-11 16:40:13,862 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:40:13,900 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:40:13,900 INFO L314 CfgBuilder]: Removed 77 assume(true) statements. [2024-10-11 16:40:13,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:40:13 BoogieIcfgContainer [2024-10-11 16:40:13,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:40:13,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:40:13,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:40:13,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:40:13,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:40:11" (1/3) ... [2024-10-11 16:40:13,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebc8821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:40:13, skipping insertion in model container [2024-10-11 16:40:13,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:40:12" (2/3) ... [2024-10-11 16:40:13,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebc8821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:40:13, skipping insertion in model container [2024-10-11 16:40:13,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:40:13" (3/3) ... [2024-10-11 16:40:13,908 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test4-3.i [2024-10-11 16:40:13,921 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:40:13,921 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 16:40:13,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:40:13,979 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@465455f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:40:13,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 16:40:13,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 461 states, 452 states have (on average 1.6238938053097345) internal successors, (734), 453 states have internal predecessors, (734), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 16:40:13,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 16:40:13,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:13,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:13,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:13,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1046347056, now seen corresponding path program 1 times [2024-10-11 16:40:14,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:14,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065358477] [2024-10-11 16:40:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:14,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:40:14,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:14,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065358477] [2024-10-11 16:40:14,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065358477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:14,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:40:14,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826326640] [2024-10-11 16:40:14,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:14,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:40:14,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:14,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:40:14,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:40:14,231 INFO L87 Difference]: Start difference. First operand has 461 states, 452 states have (on average 1.6238938053097345) internal successors, (734), 453 states have internal predecessors, (734), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:40:14,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:14,571 INFO L93 Difference]: Finished difference Result 1243 states and 2014 transitions. [2024-10-11 16:40:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:40:14,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-11 16:40:14,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:14,590 INFO L225 Difference]: With dead ends: 1243 [2024-10-11 16:40:14,590 INFO L226 Difference]: Without dead ends: 717 [2024-10-11 16:40:14,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:40:14,598 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 467 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:14,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1887 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 16:40:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-10-11 16:40:14,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2024-10-11 16:40:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 706 states have (on average 1.4560906515580736) internal successors, (1028), 706 states have internal predecessors, (1028), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1046 transitions. [2024-10-11 16:40:14,692 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1046 transitions. Word has length 9 [2024-10-11 16:40:14,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:14,692 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1046 transitions. [2024-10-11 16:40:14,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:40:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1046 transitions. [2024-10-11 16:40:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-11 16:40:14,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:14,703 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:14,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:40:14,704 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:14,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1861923141, now seen corresponding path program 1 times [2024-10-11 16:40:14,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:14,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125020511] [2024-10-11 16:40:14,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:14,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:15,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 16:40:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:15,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 16:40:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 16:40:15,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:15,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125020511] [2024-10-11 16:40:15,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125020511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:15,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:15,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:40:15,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056551414] [2024-10-11 16:40:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:15,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 16:40:15,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:15,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 16:40:15,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 16:40:15,154 INFO L87 Difference]: Start difference. First operand 717 states and 1046 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 16:40:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:15,935 INFO L93 Difference]: Finished difference Result 1383 states and 2021 transitions. [2024-10-11 16:40:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 16:40:15,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-11 16:40:15,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:15,939 INFO L225 Difference]: With dead ends: 1383 [2024-10-11 16:40:15,939 INFO L226 Difference]: Without dead ends: 725 [2024-10-11 16:40:15,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:40:15,942 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 107 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:15,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1975 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 16:40:15,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-10-11 16:40:15,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 717. [2024-10-11 16:40:15,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 706 states have (on average 1.4362606232294617) internal successors, (1014), 706 states have internal predecessors, (1014), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1032 transitions. [2024-10-11 16:40:15,962 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1032 transitions. Word has length 168 [2024-10-11 16:40:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:15,963 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1032 transitions. [2024-10-11 16:40:15,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 16:40:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1032 transitions. [2024-10-11 16:40:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-11 16:40:15,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:15,965 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:15,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:40:15,965 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:15,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:15,966 INFO L85 PathProgramCache]: Analyzing trace with hash 30989113, now seen corresponding path program 1 times [2024-10-11 16:40:15,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:15,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42290719] [2024-10-11 16:40:15,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:15,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:16,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 16:40:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:16,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 16:40:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 16:40:16,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:16,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42290719] [2024-10-11 16:40:16,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42290719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:16,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:16,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:40:16,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362980330] [2024-10-11 16:40:16,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:16,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:40:16,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:16,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:40:16,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:40:16,192 INFO L87 Difference]: Start difference. First operand 717 states and 1032 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 16:40:16,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:16,489 INFO L93 Difference]: Finished difference Result 1373 states and 1988 transitions. [2024-10-11 16:40:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:40:16,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-11 16:40:16,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:16,493 INFO L225 Difference]: With dead ends: 1373 [2024-10-11 16:40:16,495 INFO L226 Difference]: Without dead ends: 731 [2024-10-11 16:40:16,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:40:16,498 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 3 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:16,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1551 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 16:40:16,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-10-11 16:40:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 729. [2024-10-11 16:40:16,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.4289693593314763) internal successors, (1026), 718 states have internal predecessors, (1026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:16,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1044 transitions. [2024-10-11 16:40:16,526 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1044 transitions. Word has length 168 [2024-10-11 16:40:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:16,527 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1044 transitions. [2024-10-11 16:40:16,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 16:40:16,528 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1044 transitions. [2024-10-11 16:40:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-11 16:40:16,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:16,530 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:16,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:40:16,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:16,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:16,531 INFO L85 PathProgramCache]: Analyzing trace with hash -379621253, now seen corresponding path program 1 times [2024-10-11 16:40:16,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:16,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192710464] [2024-10-11 16:40:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:16,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 16:40:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:16,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 16:40:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 16:40:16,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:16,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192710464] [2024-10-11 16:40:16,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192710464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:16,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:16,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:40:16,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828113888] [2024-10-11 16:40:16,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:16,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:40:16,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:16,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:40:16,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:40:16,728 INFO L87 Difference]: Start difference. First operand 729 states and 1044 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 16:40:16,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:16,996 INFO L93 Difference]: Finished difference Result 1311 states and 1888 transitions. [2024-10-11 16:40:16,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:40:16,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-11 16:40:16,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:16,999 INFO L225 Difference]: With dead ends: 1311 [2024-10-11 16:40:16,999 INFO L226 Difference]: Without dead ends: 729 [2024-10-11 16:40:17,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:40:17,001 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 136 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:17,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1578 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 16:40:17,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-10-11 16:40:17,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 727. [2024-10-11 16:40:17,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 716 states have (on average 1.4287709497206704) internal successors, (1023), 716 states have internal predecessors, (1023), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1041 transitions. [2024-10-11 16:40:17,014 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1041 transitions. Word has length 168 [2024-10-11 16:40:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:17,014 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1041 transitions. [2024-10-11 16:40:17,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 16:40:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1041 transitions. [2024-10-11 16:40:17,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-11 16:40:17,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:17,016 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:17,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:40:17,017 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:17,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash -416051727, now seen corresponding path program 1 times [2024-10-11 16:40:17,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:17,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702002673] [2024-10-11 16:40:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:17,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 16:40:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:17,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 16:40:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:17,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 16:40:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:17,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 16:40:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:17,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702002673] [2024-10-11 16:40:17,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702002673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:17,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:17,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:40:17,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146394269] [2024-10-11 16:40:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:17,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 16:40:17,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 16:40:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 16:40:17,284 INFO L87 Difference]: Start difference. First operand 727 states and 1041 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:17,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:17,554 INFO L93 Difference]: Finished difference Result 1170 states and 1680 transitions. [2024-10-11 16:40:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:40:17,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 181 [2024-10-11 16:40:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:17,557 INFO L225 Difference]: With dead ends: 1170 [2024-10-11 16:40:17,557 INFO L226 Difference]: Without dead ends: 645 [2024-10-11 16:40:17,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:40:17,559 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 32 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:17,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1732 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 16:40:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-10-11 16:40:17,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 643. [2024-10-11 16:40:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 632 states have (on average 1.375) internal successors, (869), 632 states have internal predecessors, (869), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:17,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 887 transitions. [2024-10-11 16:40:17,571 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 887 transitions. Word has length 181 [2024-10-11 16:40:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:17,571 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 887 transitions. [2024-10-11 16:40:17,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 887 transitions. [2024-10-11 16:40:17,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-11 16:40:17,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:17,573 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:17,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:40:17,573 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:17,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:17,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1392624259, now seen corresponding path program 1 times [2024-10-11 16:40:17,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:17,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471215638] [2024-10-11 16:40:17,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:17,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:18,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 16:40:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:18,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 16:40:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:18,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 16:40:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:18,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 16:40:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:18,435 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 16:40:18,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:18,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471215638] [2024-10-11 16:40:18,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471215638] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:18,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244467980] [2024-10-11 16:40:18,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:18,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:18,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:18,438 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:18,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 16:40:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:18,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-11 16:40:18,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:18,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-10-11 16:40:19,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:40:19,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 43 [2024-10-11 16:40:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:19,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:19,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244467980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:19,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:19,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-10-11 16:40:19,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770754635] [2024-10-11 16:40:19,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:19,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 16:40:19,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 16:40:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-10-11 16:40:19,482 INFO L87 Difference]: Start difference. First operand 643 states and 887 transitions. Second operand has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 11 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:21,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:21,134 INFO L93 Difference]: Finished difference Result 1298 states and 1779 transitions. [2024-10-11 16:40:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 16:40:21,134 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 11 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 181 [2024-10-11 16:40:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:21,137 INFO L225 Difference]: With dead ends: 1298 [2024-10-11 16:40:21,137 INFO L226 Difference]: Without dead ends: 746 [2024-10-11 16:40:21,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-10-11 16:40:21,139 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 729 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:21,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 3047 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 16:40:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-10-11 16:40:21,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 675. [2024-10-11 16:40:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 664 states have (on average 1.3644578313253013) internal successors, (906), 664 states have internal predecessors, (906), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 924 transitions. [2024-10-11 16:40:21,151 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 924 transitions. Word has length 181 [2024-10-11 16:40:21,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:21,152 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 924 transitions. [2024-10-11 16:40:21,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 11 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:21,152 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 924 transitions. [2024-10-11 16:40:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-11 16:40:21,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:21,153 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:21,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 16:40:21,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:21,358 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:21,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:21,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1047796097, now seen corresponding path program 1 times [2024-10-11 16:40:21,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:21,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159317300] [2024-10-11 16:40:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:21,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:21,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 16:40:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:21,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 16:40:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 16:40:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:21,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 16:40:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:21,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:21,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159317300] [2024-10-11 16:40:21,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159317300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:21,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:21,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:40:21,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422989691] [2024-10-11 16:40:21,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:21,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 16:40:21,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:21,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 16:40:21,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 16:40:21,544 INFO L87 Difference]: Start difference. First operand 675 states and 924 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:21,789 INFO L93 Difference]: Finished difference Result 1181 states and 1620 transitions. [2024-10-11 16:40:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:40:21,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 181 [2024-10-11 16:40:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:21,792 INFO L225 Difference]: With dead ends: 1181 [2024-10-11 16:40:21,792 INFO L226 Difference]: Without dead ends: 537 [2024-10-11 16:40:21,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:40:21,794 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 11 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:21,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1429 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 16:40:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-10-11 16:40:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 535. [2024-10-11 16:40:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 524 states have (on average 1.3282442748091603) internal successors, (696), 524 states have internal predecessors, (696), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 714 transitions. [2024-10-11 16:40:21,808 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 714 transitions. Word has length 181 [2024-10-11 16:40:21,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:21,808 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 714 transitions. [2024-10-11 16:40:21,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 714 transitions. [2024-10-11 16:40:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-11 16:40:21,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:21,810 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:21,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:40:21,811 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:21,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:21,811 INFO L85 PathProgramCache]: Analyzing trace with hash 301590257, now seen corresponding path program 1 times [2024-10-11 16:40:21,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:21,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135275493] [2024-10-11 16:40:21,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:21,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:22,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 16:40:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:22,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 16:40:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:22,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 16:40:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:22,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 16:40:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:22,529 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 16:40:22,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:22,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135275493] [2024-10-11 16:40:22,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135275493] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:22,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657734615] [2024-10-11 16:40:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:22,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:22,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:22,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:22,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 16:40:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:23,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 16:40:23,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:23,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:23,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657734615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:23,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:23,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-10-11 16:40:23,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788098578] [2024-10-11 16:40:23,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:23,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:40:23,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:23,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:40:23,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 16:40:23,080 INFO L87 Difference]: Start difference. First operand 535 states and 714 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:23,175 INFO L93 Difference]: Finished difference Result 1033 states and 1389 transitions. [2024-10-11 16:40:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:40:23,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 182 [2024-10-11 16:40:23,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:23,178 INFO L225 Difference]: With dead ends: 1033 [2024-10-11 16:40:23,178 INFO L226 Difference]: Without dead ends: 535 [2024-10-11 16:40:23,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 16:40:23,179 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 13 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:23,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1047 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 16:40:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-10-11 16:40:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-10-11 16:40:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 524 states have (on average 1.3244274809160306) internal successors, (694), 524 states have internal predecessors, (694), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:23,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 712 transitions. [2024-10-11 16:40:23,192 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 712 transitions. Word has length 182 [2024-10-11 16:40:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:23,192 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 712 transitions. [2024-10-11 16:40:23,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 712 transitions. [2024-10-11 16:40:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-11 16:40:23,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:23,194 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:23,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 16:40:23,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:23,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:23,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:23,399 INFO L85 PathProgramCache]: Analyzing trace with hash 621013976, now seen corresponding path program 1 times [2024-10-11 16:40:23,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:23,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858332699] [2024-10-11 16:40:23,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:23,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:23,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 16:40:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:23,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 16:40:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:23,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 16:40:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:23,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 16:40:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:23,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:23,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858332699] [2024-10-11 16:40:23,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858332699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:23,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:23,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 16:40:23,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791866756] [2024-10-11 16:40:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:23,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 16:40:23,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:23,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 16:40:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 16:40:23,788 INFO L87 Difference]: Start difference. First operand 535 states and 712 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:24,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:24,194 INFO L93 Difference]: Finished difference Result 1038 states and 1402 transitions. [2024-10-11 16:40:24,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 16:40:24,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 183 [2024-10-11 16:40:24,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:24,197 INFO L225 Difference]: With dead ends: 1038 [2024-10-11 16:40:24,197 INFO L226 Difference]: Without dead ends: 543 [2024-10-11 16:40:24,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 16:40:24,198 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 6 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:24,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1950 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 16:40:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-11 16:40:24,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2024-10-11 16:40:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 530 states have (on average 1.320754716981132) internal successors, (700), 530 states have internal predecessors, (700), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 718 transitions. [2024-10-11 16:40:24,207 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 718 transitions. Word has length 183 [2024-10-11 16:40:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:24,207 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 718 transitions. [2024-10-11 16:40:24,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 718 transitions. [2024-10-11 16:40:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-11 16:40:24,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:24,209 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:24,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:40:24,209 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:24,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:24,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1889367030, now seen corresponding path program 1 times [2024-10-11 16:40:24,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:24,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407745384] [2024-10-11 16:40:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:24,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:24,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 16:40:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:24,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 16:40:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:24,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 16:40:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:24,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 16:40:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:24,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:24,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407745384] [2024-10-11 16:40:24,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407745384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:24,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:24,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 16:40:24,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104226681] [2024-10-11 16:40:24,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:24,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 16:40:24,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:24,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 16:40:24,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 16:40:24,545 INFO L87 Difference]: Start difference. First operand 541 states and 718 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:25,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:25,055 INFO L93 Difference]: Finished difference Result 1044 states and 1406 transitions. [2024-10-11 16:40:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 16:40:25,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2024-10-11 16:40:25,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:25,058 INFO L225 Difference]: With dead ends: 1044 [2024-10-11 16:40:25,058 INFO L226 Difference]: Without dead ends: 553 [2024-10-11 16:40:25,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 16:40:25,060 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 10 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:25,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2245 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 16:40:25,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-10-11 16:40:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 549. [2024-10-11 16:40:25,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 538 states have (on average 1.3197026022304832) internal successors, (710), 538 states have internal predecessors, (710), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:25,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 728 transitions. [2024-10-11 16:40:25,071 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 728 transitions. Word has length 184 [2024-10-11 16:40:25,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:25,071 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 728 transitions. [2024-10-11 16:40:25,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 728 transitions. [2024-10-11 16:40:25,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-11 16:40:25,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:25,073 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:25,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:40:25,073 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:25,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:25,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1536243438, now seen corresponding path program 1 times [2024-10-11 16:40:25,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:25,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978909002] [2024-10-11 16:40:25,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:25,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:25,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 16:40:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:25,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 16:40:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:25,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 16:40:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:25,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 16:40:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 16:40:25,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:25,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978909002] [2024-10-11 16:40:25,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978909002] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:25,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042444323] [2024-10-11 16:40:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:25,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:25,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:25,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:25,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 16:40:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:26,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 16:40:26,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:26,322 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 16:40:26,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:26,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042444323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:26,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:26,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2024-10-11 16:40:26,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136635525] [2024-10-11 16:40:26,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:26,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 16:40:26,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:26,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 16:40:26,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 16:40:26,324 INFO L87 Difference]: Start difference. First operand 549 states and 728 transitions. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:26,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:26,523 INFO L93 Difference]: Finished difference Result 930 states and 1247 transitions. [2024-10-11 16:40:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 16:40:26,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 184 [2024-10-11 16:40:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:26,527 INFO L225 Difference]: With dead ends: 930 [2024-10-11 16:40:26,527 INFO L226 Difference]: Without dead ends: 571 [2024-10-11 16:40:26,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 16:40:26,528 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 30 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:26,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1737 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 16:40:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-10-11 16:40:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 563. [2024-10-11 16:40:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 552 states have (on average 1.315217391304348) internal successors, (726), 552 states have internal predecessors, (726), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 744 transitions. [2024-10-11 16:40:26,542 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 744 transitions. Word has length 184 [2024-10-11 16:40:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:26,542 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 744 transitions. [2024-10-11 16:40:26,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 744 transitions. [2024-10-11 16:40:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-11 16:40:26,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:26,545 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:26,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 16:40:26,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:26,746 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:26,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1780111202, now seen corresponding path program 1 times [2024-10-11 16:40:26,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:26,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979999217] [2024-10-11 16:40:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:26,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:27,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 16:40:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:27,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 16:40:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:27,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 16:40:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:27,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 16:40:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:27,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979999217] [2024-10-11 16:40:27,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979999217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:27,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:27,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 16:40:27,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414823944] [2024-10-11 16:40:27,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:27,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 16:40:27,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 16:40:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 16:40:27,277 INFO L87 Difference]: Start difference. First operand 563 states and 744 transitions. Second operand has 8 states, 8 states have (on average 21.375) internal successors, (171), 7 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:27,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:27,759 INFO L93 Difference]: Finished difference Result 938 states and 1253 transitions. [2024-10-11 16:40:27,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 16:40:27,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.375) internal successors, (171), 7 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 185 [2024-10-11 16:40:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:27,762 INFO L225 Difference]: With dead ends: 938 [2024-10-11 16:40:27,762 INFO L226 Difference]: Without dead ends: 573 [2024-10-11 16:40:27,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 16:40:27,763 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 22 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:27,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2238 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 16:40:27,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-10-11 16:40:27,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 557. [2024-10-11 16:40:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 546 states have (on average 1.3113553113553114) internal successors, (716), 546 states have internal predecessors, (716), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:27,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 734 transitions. [2024-10-11 16:40:27,773 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 734 transitions. Word has length 185 [2024-10-11 16:40:27,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:27,774 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 734 transitions. [2024-10-11 16:40:27,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.375) internal successors, (171), 7 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:27,774 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 734 transitions. [2024-10-11 16:40:27,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-11 16:40:27,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:27,775 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:27,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:40:27,776 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:27,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:27,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2073218103, now seen corresponding path program 1 times [2024-10-11 16:40:27,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:27,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90261826] [2024-10-11 16:40:27,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:27,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:28,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 16:40:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:28,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 16:40:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:28,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 16:40:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:28,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 16:40:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:40:28,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:28,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90261826] [2024-10-11 16:40:28,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90261826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:28,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:28,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 16:40:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243850821] [2024-10-11 16:40:28,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:28,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 16:40:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 16:40:28,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 16:40:28,161 INFO L87 Difference]: Start difference. First operand 557 states and 734 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:28,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:28,587 INFO L93 Difference]: Finished difference Result 937 states and 1250 transitions. [2024-10-11 16:40:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 16:40:28,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186 [2024-10-11 16:40:28,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:28,589 INFO L225 Difference]: With dead ends: 937 [2024-10-11 16:40:28,589 INFO L226 Difference]: Without dead ends: 577 [2024-10-11 16:40:28,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 16:40:28,590 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 17 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:28,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2260 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 16:40:28,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-10-11 16:40:28,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 563. [2024-10-11 16:40:28,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 552 states have (on average 1.3079710144927537) internal successors, (722), 552 states have internal predecessors, (722), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 16:40:28,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 740 transitions. [2024-10-11 16:40:28,600 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 740 transitions. Word has length 186 [2024-10-11 16:40:28,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:28,600 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 740 transitions. [2024-10-11 16:40:28,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:28,600 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 740 transitions. [2024-10-11 16:40:28,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-11 16:40:28,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:28,602 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:28,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:40:28,602 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:28,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:28,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1876577931, now seen corresponding path program 1 times [2024-10-11 16:40:28,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:28,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105370322] [2024-10-11 16:40:28,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:28,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 16:40:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:29,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 16:40:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:29,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 16:40:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:29,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 16:40:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 16:40:29,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:29,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105370322] [2024-10-11 16:40:29,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105370322] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:29,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801915553] [2024-10-11 16:40:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:29,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:29,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:29,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 16:40:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:29,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 16:40:29,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 16:40:29,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:29,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801915553] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:29,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:29,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-11 16:40:29,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783838271] [2024-10-11 16:40:29,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:29,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 16:40:29,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 16:40:29,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 16:40:29,612 INFO L87 Difference]: Start difference. First operand 563 states and 740 transitions. Second operand has 5 states, 4 states have (on average 44.25) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:29,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:29,683 INFO L93 Difference]: Finished difference Result 1096 states and 1455 transitions. [2024-10-11 16:40:29,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 16:40:29,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 44.25) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 187 [2024-10-11 16:40:29,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:29,686 INFO L225 Difference]: With dead ends: 1096 [2024-10-11 16:40:29,686 INFO L226 Difference]: Without dead ends: 627 [2024-10-11 16:40:29,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 16:40:29,688 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 366 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:29,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1559 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 16:40:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-10-11 16:40:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 565. [2024-10-11 16:40:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 553 states have (on average 1.3092224231464737) internal successors, (724), 554 states have internal predecessors, (724), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 16:40:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 745 transitions. [2024-10-11 16:40:29,704 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 745 transitions. Word has length 187 [2024-10-11 16:40:29,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:29,704 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 745 transitions. [2024-10-11 16:40:29,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 44.25) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 16:40:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 745 transitions. [2024-10-11 16:40:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-10-11 16:40:29,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:29,707 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:29,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 16:40:29,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 16:40:29,912 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:29,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:29,913 INFO L85 PathProgramCache]: Analyzing trace with hash -187335733, now seen corresponding path program 1 times [2024-10-11 16:40:29,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:29,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489750847] [2024-10-11 16:40:29,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:29,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:30,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 16:40:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:30,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 16:40:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:30,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 16:40:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:30,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 16:40:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:30,695 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 16:40:30,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:30,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489750847] [2024-10-11 16:40:30,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489750847] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:30,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687131116] [2024-10-11 16:40:30,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:30,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:30,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:30,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:30,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 16:40:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:31,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 16:40:31,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 16:40:31,405 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:31,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687131116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:31,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:31,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-10-11 16:40:31,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765104490] [2024-10-11 16:40:31,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:31,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 16:40:31,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:31,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 16:40:31,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 16:40:31,407 INFO L87 Difference]: Start difference. First operand 565 states and 745 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:31,676 INFO L93 Difference]: Finished difference Result 1086 states and 1444 transitions. [2024-10-11 16:40:31,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 16:40:31,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2024-10-11 16:40:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:31,678 INFO L225 Difference]: With dead ends: 1086 [2024-10-11 16:40:31,678 INFO L226 Difference]: Without dead ends: 575 [2024-10-11 16:40:31,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 16:40:31,679 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 8 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:31,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1964 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 16:40:31,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-10-11 16:40:31,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 565. [2024-10-11 16:40:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 553 states have (on average 1.3092224231464737) internal successors, (724), 554 states have internal predecessors, (724), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 16:40:31,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 745 transitions. [2024-10-11 16:40:31,689 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 745 transitions. Word has length 191 [2024-10-11 16:40:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:31,690 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 745 transitions. [2024-10-11 16:40:31,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 745 transitions. [2024-10-11 16:40:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-11 16:40:31,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:31,691 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:31,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 16:40:31,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 16:40:31,892 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:31,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2131042765, now seen corresponding path program 1 times [2024-10-11 16:40:31,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:31,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969105852] [2024-10-11 16:40:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:31,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:32,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 16:40:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:32,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 16:40:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:32,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 16:40:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:32,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 16:40:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 16:40:32,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:32,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969105852] [2024-10-11 16:40:32,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969105852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:32,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:32,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 16:40:32,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774369915] [2024-10-11 16:40:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:32,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 16:40:32,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:32,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 16:40:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 16:40:32,293 INFO L87 Difference]: Start difference. First operand 565 states and 745 transitions. Second operand has 10 states, 10 states have (on average 17.5) internal successors, (175), 9 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:32,772 INFO L93 Difference]: Finished difference Result 1091 states and 1448 transitions. [2024-10-11 16:40:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 16:40:32,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 9 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2024-10-11 16:40:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:32,775 INFO L225 Difference]: With dead ends: 1091 [2024-10-11 16:40:32,775 INFO L226 Difference]: Without dead ends: 585 [2024-10-11 16:40:32,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 16:40:32,777 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 18 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:32,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2943 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 16:40:32,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-10-11 16:40:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 579. [2024-10-11 16:40:32,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 567 states have (on average 1.308641975308642) internal successors, (742), 568 states have internal predecessors, (742), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 16:40:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 763 transitions. [2024-10-11 16:40:32,788 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 763 transitions. Word has length 192 [2024-10-11 16:40:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:32,788 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 763 transitions. [2024-10-11 16:40:32,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 9 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 763 transitions. [2024-10-11 16:40:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-11 16:40:32,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:32,790 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:32,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 16:40:32,790 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:32,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:32,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1143166799, now seen corresponding path program 1 times [2024-10-11 16:40:32,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:32,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691080705] [2024-10-11 16:40:32,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:32,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:39,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 16:40:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:39,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 16:40:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:39,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 16:40:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:39,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 16:40:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 16:40:39,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:39,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691080705] [2024-10-11 16:40:39,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691080705] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:39,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455641198] [2024-10-11 16:40:39,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:39,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:39,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:39,293 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:39,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 16:40:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:39,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 16:40:39,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 16:40:40,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:40,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455641198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:40,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:40,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 24 [2024-10-11 16:40:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298601692] [2024-10-11 16:40:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:40,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 16:40:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 16:40:40,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2024-10-11 16:40:40,038 INFO L87 Difference]: Start difference. First operand 579 states and 763 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:40,357 INFO L93 Difference]: Finished difference Result 1112 states and 1475 transitions. [2024-10-11 16:40:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 16:40:40,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2024-10-11 16:40:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:40,359 INFO L225 Difference]: With dead ends: 1112 [2024-10-11 16:40:40,359 INFO L226 Difference]: Without dead ends: 599 [2024-10-11 16:40:40,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2024-10-11 16:40:40,360 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 13 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:40,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2009 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 16:40:40,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-10-11 16:40:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 589. [2024-10-11 16:40:40,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 577 states have (on average 1.3067590987868285) internal successors, (754), 578 states have internal predecessors, (754), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 16:40:40,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 775 transitions. [2024-10-11 16:40:40,375 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 775 transitions. Word has length 192 [2024-10-11 16:40:40,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:40,375 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 775 transitions. [2024-10-11 16:40:40,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:40,376 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 775 transitions. [2024-10-11 16:40:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-11 16:40:40,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:40,377 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:40,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 16:40:40,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 16:40:40,577 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:40,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash -440053157, now seen corresponding path program 1 times [2024-10-11 16:40:40,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:40,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382274771] [2024-10-11 16:40:40,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:40,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:41,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 16:40:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:41,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 16:40:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:41,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 16:40:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:41,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 16:40:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 16:40:41,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:41,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382274771] [2024-10-11 16:40:41,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382274771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:41,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:40:41,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 16:40:41,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513876378] [2024-10-11 16:40:41,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:41,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 16:40:41,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:41,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 16:40:41,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-11 16:40:41,032 INFO L87 Difference]: Start difference. First operand 589 states and 775 transitions. Second operand has 11 states, 11 states have (on average 16.0) internal successors, (176), 10 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:41,530 INFO L93 Difference]: Finished difference Result 1130 states and 1499 transitions. [2024-10-11 16:40:41,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 16:40:41,531 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.0) internal successors, (176), 10 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 193 [2024-10-11 16:40:41,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:41,533 INFO L225 Difference]: With dead ends: 1130 [2024-10-11 16:40:41,533 INFO L226 Difference]: Without dead ends: 607 [2024-10-11 16:40:41,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:40:41,534 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 21 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:41,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3261 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 16:40:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-10-11 16:40:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 595. [2024-10-11 16:40:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 583 states have (on average 1.3036020583190395) internal successors, (760), 584 states have internal predecessors, (760), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 16:40:41,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 781 transitions. [2024-10-11 16:40:41,547 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 781 transitions. Word has length 193 [2024-10-11 16:40:41,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:41,548 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 781 transitions. [2024-10-11 16:40:41,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.0) internal successors, (176), 10 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 781 transitions. [2024-10-11 16:40:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-11 16:40:41,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:41,549 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:41,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 16:40:41,549 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:41,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1138665463, now seen corresponding path program 1 times [2024-10-11 16:40:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711092183] [2024-10-11 16:40:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:42,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 16:40:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:42,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 16:40:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:42,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 16:40:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:42,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 16:40:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 16:40:42,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:42,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711092183] [2024-10-11 16:40:42,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711092183] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:42,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014273885] [2024-10-11 16:40:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:42,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:42,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:42,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:42,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 16:40:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:43,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 16:40:43,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 16:40:43,547 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:43,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014273885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:43,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:43,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2024-10-11 16:40:43,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427265603] [2024-10-11 16:40:43,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:43,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 16:40:43,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:43,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 16:40:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-10-11 16:40:43,549 INFO L87 Difference]: Start difference. First operand 595 states and 781 transitions. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:44,075 INFO L93 Difference]: Finished difference Result 1141 states and 1513 transitions. [2024-10-11 16:40:44,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 16:40:44,075 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 193 [2024-10-11 16:40:44,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:44,077 INFO L225 Difference]: With dead ends: 1141 [2024-10-11 16:40:44,077 INFO L226 Difference]: Without dead ends: 615 [2024-10-11 16:40:44,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-10-11 16:40:44,079 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 13 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:44,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2977 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 16:40:44,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-10-11 16:40:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 609. [2024-10-11 16:40:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 597 states have (on average 1.3031825795644891) internal successors, (778), 598 states have internal predecessors, (778), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 16:40:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 799 transitions. [2024-10-11 16:40:44,089 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 799 transitions. Word has length 193 [2024-10-11 16:40:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:44,089 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 799 transitions. [2024-10-11 16:40:44,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 799 transitions. [2024-10-11 16:40:44,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-11 16:40:44,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:44,091 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:44,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 16:40:44,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:44,292 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:44,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:44,292 INFO L85 PathProgramCache]: Analyzing trace with hash -645140617, now seen corresponding path program 1 times [2024-10-11 16:40:44,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:44,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405978443] [2024-10-11 16:40:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:44,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:44,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 16:40:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:45,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 16:40:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:45,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 16:40:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:45,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 16:40:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 16:40:45,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:45,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405978443] [2024-10-11 16:40:45,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405978443] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:45,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295264144] [2024-10-11 16:40:45,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:45,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:45,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:45,020 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:45,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 16:40:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:45,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 16:40:45,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 16:40:45,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:40:45,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295264144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:40:45,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:40:45,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-10-11 16:40:45,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60622516] [2024-10-11 16:40:45,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:40:45,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 16:40:45,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:40:45,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 16:40:45,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 16:40:45,707 INFO L87 Difference]: Start difference. First operand 609 states and 799 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 16:40:45,913 INFO L93 Difference]: Finished difference Result 1147 states and 1517 transitions. [2024-10-11 16:40:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 16:40:45,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 193 [2024-10-11 16:40:45,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 16:40:45,916 INFO L225 Difference]: With dead ends: 1147 [2024-10-11 16:40:45,917 INFO L226 Difference]: Without dead ends: 619 [2024-10-11 16:40:45,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:40:45,917 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 31 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 16:40:45,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1975 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 16:40:45,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-10-11 16:40:45,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 613. [2024-10-11 16:40:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 601 states have (on average 1.3011647254575707) internal successors, (782), 602 states have internal predecessors, (782), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 16:40:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 803 transitions. [2024-10-11 16:40:45,927 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 803 transitions. Word has length 193 [2024-10-11 16:40:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 16:40:45,927 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 803 transitions. [2024-10-11 16:40:45,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 16:40:45,927 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 803 transitions. [2024-10-11 16:40:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-11 16:40:45,928 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 16:40:45,928 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:40:45,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 16:40:46,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:46,129 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 16:40:46,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:40:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1800750064, now seen corresponding path program 1 times [2024-10-11 16:40:46,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:40:46,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369022230] [2024-10-11 16:40:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:40:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:46,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 16:40:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:46,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 16:40:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:46,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 16:40:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:46,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 16:40:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 16:40:46,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:40:46,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369022230] [2024-10-11 16:40:46,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369022230] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:40:46,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434491647] [2024-10-11 16:40:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:40:46,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:40:46,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:40:46,729 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:40:46,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 16:40:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:40:47,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 259 conjuncts are in the unsatisfiable core [2024-10-11 16:40:47,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:40:47,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 16:40:47,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-10-11 16:40:47,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-10-11 16:40:47,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-10-11 16:40:47,934 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-10-11 16:40:47,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-10-11 16:40:47,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-10-11 16:40:47,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 16:40:47,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 16:40:48,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-10-11 16:40:48,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-10-11 16:40:48,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-11 16:40:48,145 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-10-11 16:40:48,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 57 [2024-10-11 16:40:48,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-10-11 16:40:48,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2024-10-11 16:40:55,998 INFO L224 Elim1Store]: Index analysis took 149 ms